. >> our special guest, susan o z eisenhower taking on the web ad about the obama daughters. >>> and surprise, even bo obama gets into the act as the first family greets unsuspecting tourists at the white house. with, in fact, a fist bump from the commander in chief. >>> and good day, i'm andrea mitchell live in washington. a busy day here, secretary clinton final facing tough questions from senate republicans about benghazi. >> i'm glad that you're accepting responsibility. i think that ultimately with your leaving you accept the culpability for the worst tragedy since 9/11, and i really mean that. had i been president at the time and i found that you did not read the cables from benghazi, you did not read the cables from ambassador stevens, i would have relieved you from your post. >> well, joining me now for our daily fix, chris cillizza, msnbc contributor and nbc's capitol hill correspondent kelly o'donnell, and david sanger. welcome, all. chris, we've seen these kinds of dramas before. this one was pretty tough. of course, the house side yet to come. how is hillary clinton, do y